java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/nla-digbench/lcm2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:44:49,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:44:49,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:44:49,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:44:49,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:44:49,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:44:49,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:44:49,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:44:49,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:44:49,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:44:49,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:44:49,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:44:49,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:44:49,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:44:49,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:44:49,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:44:49,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:44:49,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:44:49,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:44:49,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:44:49,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:44:49,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:44:49,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:44:49,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:44:49,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:44:49,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:44:49,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:44:49,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:44:49,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 04:44:49,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:44:49,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:44:49,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:44:49,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:44:49,937 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:44:49,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:44:49,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:44:49,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:44:49,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:44:49,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:44:49,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:44:49,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:44:49,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:44:49,939 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:44:49,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:44:49,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:44:49,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:44:49,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:44:49,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:44:49,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:44:49,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:44:49,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:44:49,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:44:49,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:44:49,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:44:49,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:44:49,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:44:49,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:44:49,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-15 04:44:50,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:44:50,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:44:50,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:44:50,246 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:44:50,247 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:44:50,248 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/lcm2.c [2019-10-15 04:44:50,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e465258/10b2a53080f140c988ff917d9e2157a7/FLAG7168f2907 [2019-10-15 04:44:50,773 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:44:50,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/lcm2.c [2019-10-15 04:44:50,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e465258/10b2a53080f140c988ff917d9e2157a7/FLAG7168f2907 [2019-10-15 04:44:51,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e465258/10b2a53080f140c988ff917d9e2157a7 [2019-10-15 04:44:51,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:44:51,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:44:51,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:51,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:44:51,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:44:51,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a8eca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51, skipping insertion in model container [2019-10-15 04:44:51,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,178 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:44:51,201 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:44:51,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:51,462 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:44:51,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:44:51,507 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:44:51,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51 WrapperNode [2019-10-15 04:44:51,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:44:51,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:44:51,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:44:51,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:44:51,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:44:51,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:44:51,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:44:51,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:44:51,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:44:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:44:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:44:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:44:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:44:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:44:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 04:44:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 04:44:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:44:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:44:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:44:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:44:51,900 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:44:51,901 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 04:44:51,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:51 BoogieIcfgContainer [2019-10-15 04:44:51,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:44:51,909 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:44:51,910 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:44:51,910 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:44:51,911 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:51" (1/1) ... [2019-10-15 04:44:51,962 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:44:52,562 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:44:52,587 INFO L272 AbstractInterpreter]: Visited 26 different actions 266 times. Merged at 9 different actions 72 times. Widened at 2 different actions 3 times. Performed 363 root evaluator evaluations with a maximum evaluation depth of 8. Performed 363 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 20 fixpoints after 3 different actions. Largest state had 9 variables. [2019-10-15 04:44:52,587 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:44:52,593 INFO L168 Benchmark]: Toolchain (without parser) took 1429.83 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 103.5 MB in the beginning and 123.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,595 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.89 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 93.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,600 INFO L168 Benchmark]: Boogie Preprocessor took 136.89 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,603 INFO L168 Benchmark]: RCFGBuilder took 255.75 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 169.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,605 INFO L168 Benchmark]: Abstract Interpretation took 678.30 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 123.3 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2019-10-15 04:44:52,616 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.89 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 93.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.89 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.75 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 169.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 678.30 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 123.3 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L14] int a, b; [L15] int x, y, u, v; [L16] a = __VERIFIER_nondet_int() [L17] b = __VERIFIER_nondet_int() [L21] x = a [L22] y = b [L23] u = b [L24] v = a [L26] COND TRUE 1 [L27] CALL __VERIFIER_assert(x*u + y*v == 2*a*b) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...